CN1352719A - Sound insulating sandwich element - Google Patents
Sound insulating sandwich element Download PDFInfo
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- CN1352719A CN1352719A CN99816711A CN99816711A CN1352719A CN 1352719 A CN1352719 A CN 1352719A CN 99816711 A CN99816711 A CN 99816711A CN 99816711 A CN99816711 A CN 99816711A CN 1352719 A CN1352719 A CN 1352719A
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- sandwich
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
- E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8442—Tray type elements
- E04B2001/8447—Tray type elements with two facing trays
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A multilayered, sound-insulating, mechanically strong sandwich element comprising two facing layers (1) substantially attached to a plastic foam core consisting of at least two layers (2) which are joined through contact points (also called bridges) (3) creating a gap or gaps (4) between the core layers (2), and in case of long spans and/or thin facing layers, travel stops inside the gap/gaps (4) to keep the core layers (2) at a certain distance from each other, wherein the core layer material is a semi-rigid, cellular material containing more tan 50 percent open cells, and has a tensile strength of more than 50 kPa, and has a compressive strength from 5 to 200 kPa, at 10 percent deformation. The distance between the contact points or bridges (3) is at least 350 mm. The new sandwich element can be used as a sound-insulating door, a partition element or a construction unit.
Description
The present invention relates to sound insulating sandwich element; More particularly, the multistory building or structural member or the member that relate to sound insulation, for example: door, dividing plate, wall or ceiling, this element includes the semi-rigid foam sandwich of a perforate, includes at least a core, and comprises of being positioned at this sandwich or more than a hollow compartment or space; And comprise two outer surface layers.
More specifically some are said; The sandwich element that the present invention relates to insulate against sound, for example: door, baffle unit, wall, ceiling, floor, bulkhead, labeled door, grid, lid, baffle plate, window, spacer element or panel in new or existing building.In order to improve sound insulation property, new sandwich element is very useful in building, building trade or other industrial departments.In addition, the invention still further relates at the sound insulation element that is better than the prior art element aspect constructional simplicity, mechanical strength and the rigidity; And relate to the application of this multilayer sandwich element new, sound insulation in building or other industry, with other parts, structure or the mechanical acoustical behavior of improving wall, dividing plate, ceiling and building.
As everyone knows, in builing industry, utilize precast plate (panel), construction zone is subdivided into independent zone again, for example room and office as partition.Usually, these precast plates be by the mineral fibers sandwich of a sound insulation and two surround this sandwich and a space or hollow space every extexine form.Sound insulating material, for example mineral fibers is arranged between these two extexines, improves heat insulation by this way and/or sound insulation.
Use contain mineral fibers as multilayer sound insulating sandwich element, laminate or the sandwiched plate of sound insulating material as baffle unit or spacer element or precast plate, being fixed on wall or the ceiling, also is well-known with the radiation of the propagation of noise, transmission and the sound that reduce sound.By the element that will insulate against sound be used in wall or or ceiling on, or by with these elements as baffle unit, can upgrade house building or office buildings, improve its sound insulation property.Like this, can adjust older structure, it is modern that its is adapted to, higher rule criterion.The noise that sends from neighbours or outside sound source, or can significantly reduce from the noise that house interior is sent.
Yet this have the dividing plate of mineral fibers sandwich or the significant drawbacks of precast plate is, the mechanical strength of this fiber is not enough.
For this reason, the surface course of this element must be with screw or frame fixation, and with metal or the supporting of timber wall bone.This need prolong the process of manufacturing.
In JA0221642, announced a kind of precast plate of noise isolation.In this precast plate, by veneer, between the surface course that gypsum plank or acrylic panel are made, pile up porous material such as glass wool or the synthetic tree of foam one class, this mode does not contact this porous material at least with a kind of surfacing.According to the explanation of this manual, for stable or fixing this state, framework of essential use.This framework cooperates with said modules, forms a precast plate.Certainly, this is a more complicated, thereby also is the manufacturing process of comparison costliness.In addition, this is the well-known method of inferring out from common timber frame wall or precast plate.
DE3710057 has announced the multilayer sound insulation precast plate that a kind of interior wall is used.This precast plate has the space between the outer surface layer of one deck mineral wool and shaving board.This sound insulation precast plate comprises a mainboard of being made by shaving board, also is that panel or the cover plate made by shaving board are spaced apart with rib and one.The inner surface of these two blocks of plates uses the fiberboard by the glue fix in position to cover.In order to obtain the good sound fade performance, the varying in weight of this two fiberboards.This multilayer wallboard is formed by five layers, that is: two wood shavings flaggies, and wherein each layer all bonds together with a fiberboard; In the middle of laminboard layer, add the mineral wool layer of one deck as sound insulating material.This mineral wool is only filled out towards the part space, like this, and at mineral wool and be bonded between in two fiberboards on the cover inner surface one space is arranged.This cover plate is screwed on rib.Can find out that from the above description how prefabricated the structure of this laminate be quite complicated, thereby manufacturing cost is expensive.The sound insulation property of this precast plate reaches by gaining in weight, and this just makes the transportation of this plate and relatively difficulty is installed.
According to suggestion, can utilize organic plastics to come the proxy mineral fiber, for example, available well-known open-cell polyurethane foamed laminate sheet.But the shortcoming of this laminate is more crisp and hot strength low (approximately 30pa).
In No. 4317503, United States Patent (USP), announced a kind of Constracture unit of sound insulation.This element comprises a plurality of parallel layers elements, and wherein the element of first interior bed thickness is made of the plastic foam plastics of one deck mineral fibers or rigidity, and comprises many cavitys.Second is the permeable internal layer stiffener of air basically, is connected with a fluid-tight element of skin with a first type surface of this first inner layer element.The waterproof element of this skin and second inner layer element separate a small distance, make whole outer layer element with respect to this second inner layer element, free vibration basically.The major defect of this Constracture unit is the manufacturing cost costliness of complicated and this sandwich construction.
Some other known dividing plate is the sandwich construction that comprises the sandwich construction with a foam or cellular-core.Yet, though this foam core has suitable mechanical strength, the non-constant of sound insulation property.In order to overcome this shortcoming, the thickness of this foam core and weight are all very big, and this is unacceptable.
In general, the system of several known raising wall sound insulation properties is arranged, for example:
Increase the quality of wall, this provides the fundamental method (mass law) of better defening effect;
Use elastic plate or its member of sandwich construction, that is: surface course or a plurality of surface course and laminboard layer, work does not have the vibration of phase relation, make the acoustic energy of a part or most of incident, be converted into mechanical energy, this mechanical energy consumes (quality--spring-quality system) by internal friction and distortion then.
Follow mass law, increase the quality of wall or any similar structures, its shortcoming is in order to reach good performance, to need quite heavy and thick structure.
The shortcoming of common quality-spring-quality system is that when system's placement was wrong and too sensitive, the resonance frequency of system is the total performance of interference often.
Utilize sound insulation element or the precast plate announced among the WO95/14136, can obtain result preferably.The sound insulation precast plate of these multilayers or the preferred embodiment of element comprise: (a) two outer surface layers; (b) a kind of synthetic materials sandwich of softness.This sandwich is single, continuous, a soft synthetic foam laminboard layer, and it has many spaces tool, and alternately closely contacts with two skins by contact point, thereby forms the gap between this laminboard layer and relative skin.
The reality of being announced in the manual of WO95/14136, accompanying drawing, claim and the summary discloses following content:
One comprises two surface courses---for example gypsum plank, and the sandwich element of a kind of sandwich material between these two surface courses;
This laminboard layer comprises the polyethylene of flexible sealing mesh, or the polyurethane foam of the sealing mesh of rigidity, or the plastic foam of other sealing meshes, for example based on the foam of polyvinyl chloride or polystyrene.
This second surface course can be a kind of brick structure, and this is meant that indirectly available for example sand oar is with the bonding wall thereon of laminboard layer;
This laminboard layer comprises many spaces of arranging by special geometry, and is gapped between this laminboard layer and surface course;
This gap is limited between this laminboard layer and the surface course by the contact point zone of alternately arranging with respect to facing surfaces; With
In order in quality one spring one quality system, to obtain best result, some experience measures and theoretical consideration have been adopted.
Disclosed precast plate among the WO95/14136 has sound insulation character and mechanical strength.Though, compare with the known product of front, the precast plate that this technology provides gentlier and more cheap, the sound expressivity can; But still be desirable to provide very much sound insulation character and all good atrial septum panel element and sandwich element (for example door) and the dividing plate of mechanical strength.These elements and dividing plate are useful especially for the dividing plate that upgrades dwellings and office building and the improvement of design sound insulation property.In addition, also need more economical method to produce and install this sound insulation precast plate.
European patent application 98111295.6-2303 formerly relates to a kind of sound insulation precast plate of multilayer.This precast plate comprises; A surface course, one attached to the plastic foam laminboard layer on this surface course, and wherein, this laminboard layer material is the semirigid cellular material with certain characteristic; In addition, this precast plate also comprises a member, this laminboard layer can be borrowed in the projection (being commonly referred to as " contact point ") of some bars, sheet, piece or other geometries and be fixed on this member on some contact points that separate, between this laminboard layer and this member, leave the gap, and under the situation of long span and/or thin list surface layer, this precast plate comprises that also some move link stopper, makes this laminboard layer and this member leave certain distance.
According to the precast plate of EP9811129.6-2303, in builing industry and other industry, improvement is built that thing is built and/or the sound insulation character of machinery is useful.
Though in general, these sandwich elements are suitable for as baffle unit, because big gap is arranged between surface course and sandwich, so mechanical strength is not enough.And in various applications, intensity and durability are particular importances for the applicability of a structural member (for example when building door or wall).
The present invention can address that need and other needs.The invention provides the sandwich element of a kind of multilayer sound insulation, it comprises two surface courses, and between the surface course and be attached in a plastic foam sandwich on the surface course, and this sandwich has one or more than a space, this sound insulation element is characterised in that:
These cavity/a plurality of cavitys are parallel with this surface course basically and are positioned at a gap/a plurality of gaps of this sandwich;
This sandwich material is semirigid cellular material, comprises more than 50%, preferably more than 90% perforate;
And under 10% distortion, its hot strength is greater than 50kpa, more preferably greater than 90kpa;
Its compressive strength is 5-200kpa, is preferably 15-80kpa.
In a preferred embodiment of the invention, a kind of sandwich element is provided, wherein, this gap or a plurality of gap, constitute by two laminboard layers and contact point (and being called ＂ bridge ＂), this contact point shape between two laminboard layers provides structure to connect, and laminboard layer is separated, and forms a gap or a plurality of gap between laminboard layer.
Distance between these a plurality of contact points is at least 350mm, preferably be at least 450mm or even 600mm at least, as long as can keep mechanical globality.
The thickness of each surface course is 0.5-100mm, is preferably 0.5-25mm.The material of this surface course is the thick metal sheet roof covering of 0.5-20mm, is preferably steel plate or aluminium sheet; Or the thick plank of 4-25mm.The other materials that is used in the specific use occasion is known to those skilled in the art.
The thickness of foam sandwich laminate can be 20-500mm, is preferably 20-300mm, and better is below the 200mm.In order to reach tangible damping action, the minimum thickness of each foam sandwich laminate is generally 10mm, is preferably 15-100mm.But should point out that it is restrictive that these scopes should not regarded as.For some specific application scenarios, it may be suitable exceeding these scopes value in addition, for example, and the extraordinary department of ask for something sound dampening property.
The thickness of foam sandwich laminate can be identical or different.Under the situation of some surface layer material, it is favourable using different thickness, so that reduce the negative effect of the feature critical frequency of the assembly of being made by surface course and laminboard layer to greatest extent.
Best, this laminboard layer material is a polyurethane foam, and for example its preparation is disclosed in the sort of polyurethane foam in No. 5538779, the United States Patent (USP).
This laminboard layer material can comprise more than a kind of foam.For example, except polyurethane, can also comprise polyethylene or polystyrene.It also can comprise pitch or heavy plastics or the sheet material of being made by other materials.
In a preferred embodiment, the air flow resistance coefficient of laminboard layer material is 5000-800000NS/m
4, be preferably 5000-800000NS/m
4
The loss factor of laminboard layer material is more preferably greater than 0.1, better be greater than 0.2 (by SAE sound insulation and the definition of the heat-barrier material committee, referring to the SAE handbook, 1994. the 1st rolls up the 2-30 page or leaf).Loss system can reach 0.3 or even bigger.
Under the situation of long gap and/or thin list surface layer, always spaced apart each other in order to ensure laminboard layer, at least one laminboard layer with in this gap, be provided with mobile link stopper.
Under 0% distortion, the distance of mobile link stopper and relative laminboard layer, or laminboard layer distance each other is at least 0.1mm, is preferably 2-10mm.
In a preferred embodiment, total contact point area is with respect to the gross area of sandwich element, and its ratio is less than 30%, preferably less than 15%.
In a preferred embodiment, contact point is that thickness is 0.5-100mm, and width is plastic foam, plastics, metal or the timber bar of 10-100mm.Yet these scopes are not restrictive, and it can require according to the specific stress of application scenario and the rigidity of surface course changes.For example, the very large surface course of rigidity allows the thickness in space not stipulate.Laminboard layer or other structural members, for example the ledge of door frame all can play the effect of contact point or " bridge ".
In addition, the invention provides a kind of method of making new sound insulating sandwich element, by surface course being attached on the plastic foam sandwich, it is characterized in that, this plastic foam sandwich is contact point or the bridge by predetermined distance, two laminboard layers are coupled together make, between two laminboard layers, leave a gap/a plurality of gaps; Perhaps make like this: at first process two laminboard layers, contact point or bridge as this laminboard layer integral part are formed in predetermined distance, by contact point or bridge, two laminboard layers are coupled together then, between laminboard layer, leave one or more gaps; Perhaps make by cut out a gap or a plurality of gap from a plastic foamboard.
In addition, the invention provides the new sound insulating sandwich element of use in builing industry and other industry, improve the sound insulation character of building and/or machinery.
Astonishing especially characteristics of the present invention are that the long span that is attached in the laminboard layer on the surface course vibrates, and in all frequencies, particularly at resonance frequency and critical frequency place, has good especially damping action.
To under the stable condition, the gap that produces in foam core can be done bigger change according to actual needs.The very large surface course of rigidity can allow gap thickness is not stipulated.This thickness can change in the 0.1-200mm scope usually.Sometimes this gap thickness is selected between 20-50mm, and cable, pipeline and other service circuits are passed through.Except these special considerations, the thickness in this space in the 1-10mm scope, is preferably 2-5mm usually.
When using plaster paper dregs of rice plate (or plate of making by the big inadequately material of any other rigidity) as surface course, if and, for example, this plaster paper dregs of rice plate thickness is 10mm, and its span surpasses under the situation of 400mm, or thickness is 13mm, its span surpasses under the situation of 600mm, correspondingly, the mobile link stopper system of " medium " span of being made by bar or sheet can be installed, with the distortion of restriction plaster paper dregs of rice plate.As an example, if the plaster paper dregs of rice plate stacked pressuring plate that 1200mm is wide is installed in the edge of this plate with the contact point (bar) of 40mm width, thereby forms the free span of a 1120mm, in order to reduce span, can move the shelves bar in one of the center fixed of this plate.If the width of above-mentioned bow strip for example is 40mm, then the width of this mobile blend stop is 30-39.9mm, is preferably 35-38mm.
By using predetermined parameter in manual and claims, particularly by using a kind of special foamed material and laminboard layer, surface course and mobile link stopper being carried out particular design realize the present invention, just can obtain a kind of resonance frequency very low and particularly very big and mechanical strength and the high sound insulating sandwich element of rigidity in resonance frequency place vibration damping.This means transportation and handle new element and do not have special danger and damage.Therefore, do not need to guarantee the reinforcement of assembly mechanical integrity, as screw, framework or wall bone.
However, in order to satisfy the specific (special) requirements of using,, the device of other connections or increase rigidity can be combined in this element, or be placed on joint in each member back in place or before installing.When preventing all requirement of strength in still satisfy using, the sound shunting takes place, can take some design measures.Those skilled in the art know this point.
For the applicable cases of door, typical intensifier is wooden frame or metal framework, for the applicable cases of dividing plate, then is the beam between steel wall bone or the plate; And, then be sand oar or glue for the applicable cases of wall.
Surface course can be with any material manufacturing that generally is used to produce sound insulating sandwich element or precast plate.The exemplary materials that is used to make surface course comprises: plastic plate or shaving board, millboard, fiberboard, gypsum plank, flexible plastic film or paper tinsel, metal sheet (for example steel, lead or aluminium sheet), veneer, plank and sawdust board; Most typical is gypsum plaster board and sawdust board.Preferred material as surface course in dividing plate is answered is a gypsum plank; And in the application of door, then be metal sheet or plank.
In one embodiment of the present of invention, make laminboard layer by polyurethane foam, on the surface in its two surfaces, has the polyurethane foam sheet that separates as contact point, basically be to utilize bonding agent to be connected with another polyurethane foam laminboard layer, form a sandwich like this on its " interior " surface.Common this plate is prefabricated, thereby avoids assembling on-site.Then, utilize suitable bonding agent usually, for example: polyurethane glue, neoprene latex contact beam or shift bonding agent and carry out bonding method, or with the method for mechanical fixation, this sandwich is fixed on above-mentioned two surface courses.To make sandwich element of the present invention.
Obtaining so for example can be as door at sandwich element.In order to satisfy such as heat stability, the shock resistance distortion, perfectly plane surface and aesthstic and so on requirement, usually, the surfacing of door is sheet metal layers or veneer flaggy, and is connected in basically on this laminboard layer.Therefore, when the surface course insufficient rigidity, the very important point is not produce the gap between this enhancing foam core and surface course.
In addition, the advantage that above-mentioned surface course and laminboard layer utilize bonding agent to be connected is that the high damping sandwich material that the present invention is used can reduce the transmission of shock and vibration greatly.
This new sandwich element also can be used as the room dividing plate of self erecting.Usually, baffle unit is fixed on floor and/or the ceiling.It also can be fixed on wall, and ceiling is on floor or other fabric structures.
Interlayer dividing plate notion of the present invention relates to the spatial division unit, mainly is that office, industrial lightly constructed and simply equipped building and other precast plates are used, and these occasions are very important to the composite request of in light weight, easy linkage, handlability and sound insulation property.These dividing plates can be placed on horizontal or vertical position, but execute in the example at some, and they also can acutangulate or the obtuse angle is placed.
In addition, also find, special contact point or bridge are combined in this sandwich, form a space or a plurality of space, can make sound insulation property very good.This also is outstanding characteristics of the present invention.
This contact point can be obtained by polyurethane foam processing, or can be made by other suitable materials, for example: the plastics, glue or other bonding agents that are not polyurethane; Timber, the plaster of paris or metal are as long as can satisfy requirement of the present invention.
Sandwich element of the present invention, except being used in door and baffle wall, an alternative embodiment of the invention can be used as the precast plate (panel) in the structure member.Here, the function of new sandwich element is just as the masonry in wall, ceiling, floor or any other structure division or the parts of building.
Sound insulating sandwich element of the present invention is not only particularly useful in the trimming existing building, and can be used as the element in the new construction.They can make door or baffle unit, or the wall construction parts.These elements are very thin, in light weight, and the mechanical strength height can improve sound insulation property, therefore can elimination or attenuates sound and noise, and these sound and noise can pass through wall, door, floor, ceiling and dividing plate transmission when not having these sound insulation elements.
According to example, it will be seen that later on the sound insulation element of prior art relatively, sandwich element of the present invention, aspect sound insulation/mechanical strength/in light weight/thickness property and production/mounting method comprehensive, its superior degree is amazing.Compare with existing soundproof course element, their mechanical strength is very high, has good sound dampening performance, and can reduce and reduce resonance frequency.The effect of first very soft spring is played in gap in the sandwich, and above-mentioned laminboard layer plays second hard spring, because the hardness of laminboard layer, the distortion of this element is restricted greatly, and this makes element of the present invention use in building to have competitiveness.
Following Example is used to illustrate the present invention, and should not regard limitation of the present invention as.
Example 1
The schematically illustrated sandwich element assembly of the present invention that uses as door of Fig. 1.Label 1 presentation surface layer, 2 expression laminboard layers, 3 expression contact points, in this example, this contact point is the T font.Two sandwich elements after Fig. 2 and Fig. 3 represent to assemble, with element comparison shown in Figure 2, the difference of element shown in Figure 3 is to have added the 3rd contact point.
This element is made by thick polyurethane sheet of 20mm and the polyurethane sheet 2 of a 40mm, wherein, described polyurethane is according to the 1 described method preparation of the example in No. 5538779, the United States Patent (USP), in addition, two blocks of steel plates 1 that 1mm is thick at room temperature, spray splicing by utilizing a kind of contact bonding agent (neoprene latex), an above-mentioned polyurethane sheet and a metal sheet are bonding, and another piece polyurethane sheet and second metal sheet are bonding.Two assemblies are wide by 40mm respectively, the T font contact point 3 (as shown in Figure 2) of the 800mm distance that separates each other, with couple together by T font contact point 3 and another contact point 3 (as shown in Figure 3) at the center, above-mentioned contact point be the wide plastic strip of the thick and 40mm of 3mm (for example, PE, PV or PVC).
The thickness that should be pointed out that two laminboard layers is inequality.Reason is, in case after two laminboard layers are fixed together, can reduce the negative effect of the feature critical frequency of surface course and laminboard layer like this.
As needs, can introduce mobile link stopper.
Space 4 is characterized by thickness and the distance D that above-mentioned contact point 3 produces.Fig. 2 and distance D shown in Figure 3 are at least 350mm, better are 450mm, and perhaps 600mm or bigger preferably is as long as can keep mechanical integrity.
The dimensional stability and the heat stability of door constructed in accordance are very good, under different temperatures, can not become arc.This can be heat insulation and the performance of the sound that produces in extraordinary shock resistance and the secluding air is arranged---be better than the classic structure more than heavy three times.
Even surface layer material is extremely thin,, can obtain extraordinary flatness and aesthstic performance as long as suitably select the thickness and the rigidity of sandwich material.
Example 2
Make a fan according to door sandwich element of the present invention, and test its sound insulation property.
2.1-Fig. 4 represents to be of a size of the cross-sectional view (also referring to Fig. 1) and the tested composition of the door of 1050mm * 2050mm * 55mm.Surface course 1 is the thick steel plate of 1.5mm.
This sandwich material 2 is a kind of foam every noise, described in No. 5538779, front United States Patent (USP), can obtain from Dow chemical company.The thickness H1 of top half is 15mm, and the thickness of the end half H2 of is 35mm.
The foamed material bar that contact point 3 is wide by 30mm, 5mm is thick and 2050mm is long is made, and the pine framework that wide 55mm of 15mm is thick is round four sides of door-plate, to improve rigidity and to form hard edge simultaneously.
As can be seen, wooden frame is whole with contact neoprene latex bonding agent, and is bonding with foam core and steel surface course from the structure of Fig. 4; And the foamed material bar only is placed on the there, but not bonding, with the contact between two and half ones that guarantee sandwich material 2.
The measurement weight of tested door is 57kg, promptly has only 26kg/m
2The gross thickness of door is 58mm.
Although weight is very light, thickness is little, yet, the cross section gating element of the present invention as shown in Figure 4 or the sound insulation property very good (when measuring) of door-plate, R with the decibel of (A) scale
W=49dB (A), R
Pink=47dB (A) and R
Road noise=41dB (A).
There is not the door-plate of a kind of existing this weight and thickness can reach this performance.
For example, this door-plate can be thick with 90mm, weight is 207kg/m
2The solid concrete wall compare, the latter's sound insulation property is R=47dB.
2.2-Fig. 5 represents the cross section with Yishanmen, but for second test, the contact point bar 3 of center and two sides utilizes two side surfaces of contact bonding agent and sandwich material 2 to bond together, this method that is connected makes the rigidity of element higher.
Just according to expectation is the same, and the distance D between the contact point is decreased to 465mm (test 2) from 1020mm (test 1), and this has some influences to sound insulation property, but sound insulation property is still fine, and still within the scope of the invention.
RW=45dB (A), R
Pink=44dB (A), R
Road noise=37dB (A).
2.3 and 2.4-Fig. 6 and Fig. 7 illustrate the cross section of the door-plate improved according to the present invention, is suitable for suitability for industrialized production.
In Fig. 6, surface course 1 harder or hard (for example, plywood parquet), therefore, to strengthen such needs be selectable and the size that is decided by span D.
Two and half ones of sandwich (two laminboard layers 2) have different thickness H1 and H2.Contact point 3 leaves a space 4, and framework 7 is round this door-plate.
2.4-in Fig. 7, surface course 1 is thin plate (for example, the steel plate that 0.6mm is thick), therefore, need weld or glued joint the rigidity that ∪ shape profile elements 6 increases surface course on surface course.
Because these ∪ shape profile elements 6 are imbedded in the foam core, because the powerful damping capacity of foam core reduces the vibration of this ∪ shape profile elements.Must understand that because its moment of inertia and specific modulus can have other shapes that suitably improve the rigidity effect, for example T shape profile elements or other profile elements (being made by aluminium, steel, plastics or timber) also can adopt.
Space 4 is extremely thin, and is produced by the thickness of metal framework 7.Under this specific situation, this metal framework 7 replaces the common bar that uses as contact point 3, and formation " bridge " between two laminboard layers.The thickness identical (H1=H2) of two and half ones of these two laminboard layers or sandwich material 2.
Sometimes, make the profile elements (or a plurality of profile elements) and the width of sandwich element rather than highly parallel that increase rigidity, more convenient like this.Certainly, to also being acceptable with line and this profile elements of cross-over configuration.
Example 3
The schematically illustrated sandwich element assembly as baffle unit of the present invention of Fig. 8.Sandwich element after the assembling is shown among Fig. 9.Label 1 presentation surface layer, label 2 expression laminboard layers, label 3 expression contact points.In this example, because the thick gap 4 of 2mm is to be processed into by a single plate, therefore, this contact point belongs to sandwich material itself.
The sandwich element that these are new is by the thick polyurethane of 25mm (according to No. 5538779, United States Patent (USP)) plate 2 and two planks 1 that 15mm is thick, utilize the contact bonding agent based on neoprene latex, bonds together mutually to make.The contact point width that constitutes a sandwich body part is 15mm.
Do the time spent at the noise frequency that is subjected between about 50HZ-5000Hz, the negative effect that adds up of the same critical frequency that produces for fear of two surface courses, best above-mentioned gap is not the center that accurately is positioned at this precast plate.In some cases, this negative effect is not what be harmful to.Yet everything all is decided by the thickness of surface course, modulus and damped coefficient.
Example 4
In this example, disclosing will be according to the situation of sandwich element of the present invention as structure member.As can be seen from Figure 10, the sandwich of this element is to be made by the adhesive sheet of two foams plastic materials, leaves one at the center or preferably not in the gap 4 at center.This sandwich element has L shaped loam brick surface course that sandwich 2 encapsulation is got up.This L shaped brick tabulation surface layer forms second gap 5 along the vertical edge of this element, for cable by the space is provided.In another embodiment, this gap 5 is used for perfusion and connects the sand oar.
Figure 11 illustrates another embodiment of a sandwich element that is used for wall construction.Surface course 1 is made by hollow brick.Sandwich towards this element opens wide in space in the brick---for example groove or hole, garden---.Percent opening is approximately 10%-80%, is preferably in more than 30%.This configuration is a feature of the present invention, and it can reduce the resonance frequency of quality spring mass system, has the benefit of sound absorption simultaneously.
Claims (18)
1. the sound insulating sandwich element of a multilayer, it comprises between two surface courses and these two surface courses of position, and attached to a plastic foam sandwich on the surface course; This sandwich has one or more than a cavity, it is characterized in that:
These cavity/a plurality of cavitys are parallel with this surface course basically and are positioned at a gap/a plurality of gaps of this sandwich;
This sandwich material is semirigid cellular material, comprises more than 50%, preferably more than 90% perforate;
And under 10% distortion, its hot strength is greater than 50kpa, more preferably greater than 90kpa;
Its compressive strength is 5-200kpa, is preferably 15-80kpa.
2. element as claimed in claim 1 is characterized in that, this gap/a plurality of gaps are formed by two laminboard layers and contact point (bridge), and this contact point provides connection and they are separated each other between laminboard layer.
3. element as claimed in claim 1 or 2 is characterized in that, the distance between these a plurality of contact points is at least 350mm, preferably is at least 450mm or even 600mm at least.
4. as any one described element among the claim 1-3, it is characterized in that this sandwich material is a polyurethane foam.
5. as any one described element among the claim 1-4, it is characterized in that this laminboard layer comprises more than a kind of foam.
6. as any one described element among the claim 1-5, it is characterized in that the thickness of each surface course is 0.5-200mm, the thickness of foam sandwich laminate is 5-500mm,, be preferably 20-200mm.
7. as any one described element among the claim 1-6, it is characterized in that the thickness of these two foam sandwich laminates is inequality.
8. as any one described element among the claim 1-7, it is characterized in that the air flow resistance coefficient of this laminboard layer material is 5000-800000Ns/m4, is preferably 5000-300000Ns/m4.
9. as any one described element among the claim 1-8, it is characterized in that the loss factor of this laminboard layer material is greater than 0.1, more preferably greater than 0.2.
10. as any one described element among the claim 1-9, it is characterized in that, spaced from each other in order to make laminboard layer under the situation of long gap and/or thin list surface layer, at least one laminboard layer with in this gap, be provided with mobile link stopper.
11. element as claimed in claim 10 is characterized in that, under 0% distortion, and the distance of mobile link stopper and relative laminboard layer, or laminboard layer distance each other is at least 0.1mm, is preferably 2-10mm.
12., it is characterized in that total contact point area is with respect to the gross area of sandwich element as any one described element among the claim 1-11, its ratio is less than 30%, preferably less than 15%.
13., it is characterized in that the material that lead on this surface is a metal sheet roof covering as any one described element in claim 1 or 12, be preferably steel plate or aluminium sheet, or plank.
14., it is characterized in that this contact point is that thickness is that 0.5-100mm, width are plastic foam, plastics, metal or the timber bar of 10-100mm as any one described element in claim 2 or 13.
15. as the manufacture method of sandwich element as described in any one among the claim 1-14, surface course is attached on the plastic foam sandwich, it is characterized in that, this plastic foam sandwich is by contact point or bridge at preset distance, two laminboard layers are coupled together make, between two laminboard layers, leave a gap/a plurality of gaps; Perhaps make like this: at first process two laminboard layers, contact point or bridge as the integral part of this laminboard layer are formed in predetermined distance, by contact point or bridge, two laminboard layers are coupled together then, between laminboard layer, leave one or more gaps; Perhaps make by cut out a gap or a plurality of gap from a plastic foamboard.
16. as any one described element among the claim 1-14, the application in builing industry and other industry is for improving the sound insulation character of building and/or machinery.
17. the application described in claim 16 is characterized in that, this element is as door, baffle unit or structure member.
18. the application described in claim 17 is characterized in that, this element is used as is stained with brick or gypsum plaster stone.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99111191.5 | 1999-06-09 | ||
| EP99111191A EP1061190B1 (en) | 1999-06-09 | 1999-06-09 | Sound insulating sandwich element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1352719A true CN1352719A (en) | 2002-06-05 |
| CN1148501C CN1148501C (en) | 2004-05-05 |
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ID=8238326
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998167118A Expired - Fee Related CN1148501C (en) | 1999-06-09 | 1999-06-18 | Sound insulating sandwich element |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP1061190B1 (en) |
| JP (1) | JP4426141B2 (en) |
| KR (1) | KR20020022066A (en) |
| CN (1) | CN1148501C (en) |
| AT (1) | ATE362024T1 (en) |
| AU (1) | AU771473B2 (en) |
| BR (1) | BR9917404A (en) |
| CA (1) | CA2371354C (en) |
| DE (1) | DE69936046T2 (en) |
| DK (1) | DK1061190T3 (en) |
| ES (1) | ES2285804T3 (en) |
| MX (1) | MXPA01012664A (en) |
| MY (1) | MY125896A (en) |
| PT (1) | PT1061190E (en) |
| TW (1) | TW592974B (en) |
| WO (1) | WO2000075443A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101228572B (en) * | 2005-05-28 | 2011-06-08 | 空中客车德国有限公司 | Sandwich structure having a frequency-selective double-wall behavior |
| CN102700181A (en) * | 2012-05-15 | 2012-10-03 | 西安交通大学 | Light multifunctional composite structure |
| CN105383099A (en) * | 2014-09-02 | 2016-03-09 | 梅塔韦尔金属复合板技术有限公司 | Filled metal sandwich structure |
| CN105986639A (en) * | 2014-08-19 | 2016-10-05 | 中晔科技有限公司 | Composite panel for green building |
| CN107620403A (en) * | 2017-09-21 | 2018-01-23 | 南京工业大学 | The high-strength wooden shear wall of rubber attachment structure |
| CN107700686A (en) * | 2017-09-21 | 2018-02-16 | 江苏声立方环保科技有限公司 | Felt and its manufacture method |
| CN109138507A (en) * | 2018-07-29 | 2019-01-04 | 广东广凌信息科技股份有限公司 | A kind of sound insulation system of massage voice reading pavilion |
| CN110344510A (en) * | 2019-07-29 | 2019-10-18 | 南京航空航天大学 | A kind of multilayer sound insulation wall construction and preparation method thereof with wave arrestment floor |
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| AU783624B2 (en) * | 2000-03-17 | 2005-11-17 | Fletcher Challenge Limited | Building Construction |
| FR2827323B1 (en) * | 2001-07-16 | 2004-06-25 | Imerys Structure | INSULATING CONSTRUCTION ELEMENT |
| JP4684737B2 (en) * | 2005-05-02 | 2011-05-18 | 神鋼鋼線工業株式会社 | Lightweight flooring for vehicles |
| GB2434482A (en) * | 2006-01-18 | 2007-07-25 | Gordon James Harris | Angular sound baffle |
| ATE439483T1 (en) * | 2006-03-10 | 2009-08-15 | Basf Se | MULTI-LAYER FOAM COMPOSITE ELEMENT WITH CUTOUTS |
| US7631727B2 (en) | 2006-05-24 | 2009-12-15 | Airbus Deutschland Gmbh | Sandwich structure with frequency-selective double wall behavior |
| AT506013B1 (en) | 2007-09-14 | 2009-09-15 | Klh Massivholz Gesmbh | FLOOR BZW. BLANKET |
| NZ598349A (en) * | 2009-08-20 | 2013-06-28 | Hardie James Technology Ltd | Building system with elongate damping member between cladding and sub-structure to dampen energy transfer |
| US8973329B2 (en) | 2009-08-20 | 2015-03-10 | James Hardie Technology Limited | Building system with multi-function insulation barrier |
| KR20170063629A (en) * | 2014-09-30 | 2017-06-08 | 세키스이가가쿠 고교가부시키가이샤 | Heat-conducting foam sheet for electronic devices |
| FI20165069A (en) | 2016-02-02 | 2017-08-03 | Framery Oy | wall construction |
| DE102016110665A1 (en) * | 2016-06-09 | 2017-12-14 | Odenwald-Chemie Gmbh | composite element |
| CA3179006A1 (en) * | 2020-06-10 | 2021-12-16 | Westlake Royal Building Products Inc. | Sound control components comprising foam composites |
| US11692350B2 (en) | 2021-06-30 | 2023-07-04 | Solar Turbines Incorporated | Composite noise-attenuating panel system |
| FR3127740B1 (en) * | 2021-10-01 | 2023-12-08 | Faiveley Transp Tours | WITH IMPROVED SOUND INSULATION PROPERTIES, |
| CN114083838A (en) * | 2021-12-03 | 2022-02-25 | 青岛理工大学 | Sandwich structure with low-specific-modulus insertion layer and preparation method thereof |
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| FR2228916A1 (en) * | 1973-05-10 | 1974-12-06 | Hugo Knodler Kg | Soundproof composite building panel - has voids through expanded polystyrene core filled with insulation |
| SE420750B (en) | 1978-11-17 | 1981-10-26 | Ingemanssons Ingenjorsbyra Ab | SOUND-INSULATING BUILDING ELEMENT WITH GREAT STUFF |
| DE3710057A1 (en) | 1987-03-27 | 1988-12-01 | Wenger Wespanwerk Ag | Sound-insulating interior partition wall |
| DE3940452C1 (en) * | 1989-12-07 | 1991-05-02 | Helmut 5804 Herdecke De Pelzer | Roller shutter for window and door sound insulation - consists of heavy material strips coupled by mat of open-pore foam or felt |
| GB9323829D0 (en) | 1993-11-19 | 1994-01-05 | Dow Deutschland Inc | Acoustic insulating panels or elements |
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1999
- 1999-06-09 DK DK99111191T patent/DK1061190T3/en active
- 1999-06-09 DE DE69936046T patent/DE69936046T2/en not_active Expired - Lifetime
- 1999-06-09 ES ES99111191T patent/ES2285804T3/en not_active Expired - Lifetime
- 1999-06-09 AT AT99111191T patent/ATE362024T1/en active
- 1999-06-09 EP EP99111191A patent/EP1061190B1/en not_active Expired - Lifetime
- 1999-06-09 PT PT99111191T patent/PT1061190E/en unknown
- 1999-06-18 MX MXPA01012664A patent/MXPA01012664A/en not_active IP Right Cessation
- 1999-06-18 AU AU45774/99A patent/AU771473B2/en not_active Ceased
- 1999-06-18 JP JP2001501706A patent/JP4426141B2/en not_active Expired - Fee Related
- 1999-06-18 CN CNB998167118A patent/CN1148501C/en not_active Expired - Fee Related
- 1999-06-18 KR KR1020017015815A patent/KR20020022066A/en not_active Application Discontinuation
- 1999-06-18 MY MYPI99002533A patent/MY125896A/en unknown
- 1999-06-18 WO PCT/US1999/013777 patent/WO2000075443A1/en active IP Right Grant
- 1999-06-18 CA CA002371354A patent/CA2371354C/en not_active Expired - Fee Related
- 1999-06-18 BR BR9917404-9A patent/BR9917404A/en not_active IP Right Cessation
- 1999-06-21 TW TW088110342A patent/TW592974B/en active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101228572B (en) * | 2005-05-28 | 2011-06-08 | 空中客车德国有限公司 | Sandwich structure having a frequency-selective double-wall behavior |
| CN102700181A (en) * | 2012-05-15 | 2012-10-03 | 西安交通大学 | Light multifunctional composite structure |
| CN102700181B (en) * | 2012-05-15 | 2014-09-03 | 西安交通大学 | Light multifunctional composite structure |
| CN105986639A (en) * | 2014-08-19 | 2016-10-05 | 中晔科技有限公司 | Composite panel for green building |
| CN105383099A (en) * | 2014-09-02 | 2016-03-09 | 梅塔韦尔金属复合板技术有限公司 | Filled metal sandwich structure |
| CN107620403A (en) * | 2017-09-21 | 2018-01-23 | 南京工业大学 | The high-strength wooden shear wall of rubber attachment structure |
| CN107700686A (en) * | 2017-09-21 | 2018-02-16 | 江苏声立方环保科技有限公司 | Felt and its manufacture method |
| CN107700686B (en) * | 2017-09-21 | 2023-04-25 | 江苏声立方环保科技有限公司 | Sound absorption and insulation board and manufacturing method thereof |
| CN109138507A (en) * | 2018-07-29 | 2019-01-04 | 广东广凌信息科技股份有限公司 | A kind of sound insulation system of massage voice reading pavilion |
| CN110344510A (en) * | 2019-07-29 | 2019-10-18 | 南京航空航天大学 | A kind of multilayer sound insulation wall construction and preparation method thereof with wave arrestment floor |
Also Published As
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| PT1061190E (en) | 2007-08-16 |
| DK1061190T3 (en) | 2007-09-17 |
| BR9917404A (en) | 2002-03-19 |
| MXPA01012664A (en) | 2002-06-04 |
| JP2003522305A (en) | 2003-07-22 |
| KR20020022066A (en) | 2002-03-23 |
| DE69936046D1 (en) | 2007-06-21 |
| AU4577499A (en) | 2000-12-28 |
| ATE362024T1 (en) | 2007-06-15 |
| CA2371354C (en) | 2008-04-22 |
| ES2285804T3 (en) | 2007-11-16 |
| CA2371354A1 (en) | 2000-12-14 |
| AU771473B2 (en) | 2004-03-25 |
| MY125896A (en) | 2006-08-30 |
| WO2000075443A1 (en) | 2000-12-14 |
| JP4426141B2 (en) | 2010-03-03 |
| CN1148501C (en) | 2004-05-05 |
| EP1061190B1 (en) | 2007-05-09 |
| EP1061190A1 (en) | 2000-12-20 |
| DE69936046T2 (en) | 2008-01-10 |
| TW592974B (en) | 2004-06-21 |
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